| Agent Name |
Fenthion |
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| CAS Number |
55-38-9 |
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| Formula |
C10-H15-O3-P-S2 |
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| Major Category |
Pesticides |
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| Synonyms |
4-Methylmercapto-3-methylphenyl dimethyl thiophosphate; B 29493; BAY 29493; Bay-Bassa; Baycid; Bayer 29493; Bayer 9007; Bayer S-1752; Baytex; Entex; Fenthion 4E; Fenthion-methyl; Fenthione; Figuron; Lebaycid; MPP; MPP (pesticide); Mercaptophos; O,O-Dimethyl O-(3-methyl-4-(methylthio)phenyl)phosphorothioate; O,O-Dimethyl O-(3-methyl-4-methylmercaptophenyl)phosphorothioate; O,O-Dimethyl O-(3-methyl-4-methylthio-fenyl)-monothiofosfaat [Dutch]; O,O-Dimethyl O-(4-(methylthio)-m-tolyl) phosphorothioate; O,O-Dimethyl O-(4-methylmercapto-3-methylphenyl) thionophosphate; O,O-Dimethyl O-(4-methylthio-3-methylphenyl) phosphorothioate; O,O-Dimethyl O-(4-methylthio-3-methylphenyl) thiophosphate; O,O-Dimethyl O-3-methyl-4-methylthiophenyl phosphorothioate; O,O-Dimethyl O-4-(methylmercapto)-3-methylphenyl phosphorothioate; O,O-Dimethyl-O-(3-methyl-4-methylmercaptophenyl)phosphorothioate; O,O-Dimethyl-O-(3-methyl-4-methylthio-fenyl)-monothiofosfaat [Dutch]; O,O-Dimethyl-O-(3-methyl-4-methylthio-phenyl)-thionophosphat [German]; O,O-Dimethyl-O-(3-methyl-4-methylthiophenyl)-monothiophosphat [German]; O,O-Dimethyl-O-4-(methylmercapto)-3-methylphenyl phosphorothioate; O,O-Dimethyl-O-4-(methylmercapto)-3-methylphenyl thiophosphate; O,O-Dimetil-O-(3-metil-4-metiltio-fenil)-monotiofosfato [Italian]; OMS 2; Phenthion; Pro-Spot; Queletox; S 1752; Spotton; Sulfidophos; Talodex; Thiophosphate de O,O-dimethyle et de O-(3-methyl-4-methylthiophenyle) [French]; Tiguvon; m-Cresol, 4-(methylthio)-, O-ester with O,O-dimethyl phosphorothioate; [ChemIDplus] |
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| Category |
Organophosphates |
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| Description |
Colorless to brown liquid with a slight, garlic-like odor. [insecticide]; [NIOSH] |
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| Sources/Uses |
Used to kill fruit flies, stem borers, mosquitoes, and Eurygaster cereal bugs; it is also applied as paste to bird roosting areas to kill pigeons and other bird pests; [EXTOXNET] |
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| Comments |
Classified as "moderately toxic"; All bird control products and nondomestic, nongranular formulations of greater than 70% fenthion may be used only by certified applicators; it is not licensed for use on food crops; [EXTOXNET] |
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| Reference Link |
EXTOXNET PIP - FENTHION |
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| Exposure Assessment |
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| BEI |
Cholinesterase activity in red cells = 70% of individual's baseline, sample time discretionary; [ACGIH] |
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| Skin Designation (ACGIH) |
Yes |
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| TLV (ACGIH) |
0.05 mg/m3, inhalable fraction and vapor |
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| MAK |
0.2 mg/m3, inhalable fraction |
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| Vapor Pressure |
3 x 10 -05 mm Hg |
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| Adverse Effects |
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| Other Poison |
Organophosphate |
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| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: FENTHION
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